I like your idea of "How to Videos". But, I think you are thinking to much about combining hives. My reaction is that the answer to your questions is "It doesn't matter. Just do it." But, maybe I don't think enough about whether what you ask about makes much difference. I'm sure someone has Theorys and answers to your question and know the "proper" way to do what you ask about. But, I believe that "proper" is maybe not the right word to use when doing something beekeepingwise.
Originally Posted by DOEBOY
Otherwise, I support your idea.
Mark Berninghausen "To float, upheld, as salt water would hold you, once you dared." Denise Levertov, poet